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Operational Aspects Of Successful Ground Squirrel Control By Aerial Application Of Grain Bait, Conrad Schilling

Vertebrate Pest Conference Proceedings: 7th (1976)

By County Ordinance the County Agricultural Commissioner has been charged with rodent suppression in Fresno County, California. For nine years personnel from the Agricultural Commissioner's Office have conducted a county operated and funded program of ground squirrel suppression through the use of aerially applied zinc phosphide treated squirrel oat groats. Planning procedures, relative costs and operational aspects of the program are outlined. This technique of ground squirrel suppression has been shown to have many advantages over hand application of rodent baits. No known hazards to non-target wildlife species have been demonstrated.

Opening Comments—Seventh Vertebrate Pest Conference, Charles C. Siebe

Vertebrate Pest Conference Proceedings: 7th (1976)

On behalf of the Vertebrate Pest Council, it is my pleasure to welcome you to the Seventh Vertebrate Pest Conference. We are pleased that the American Society for Testing and Materials held its first Symposium on Test Methods for Vertebrate Pest Control and Management Materials in conjunction with our Conference, and we congratulate Symposium Chairman Rex Marsh for the excellent program that was presented. The concerns and challenges of today's society mandate that we be knowledgeable and up-to-date concerning the use of vertebrate pest damage control methods and materials and the impacts of our programs on the environment.

Criteria For Rodent Bait Selection, W.R. Smythe

Vertebrate Pest Conference Proceedings: 7th (1976)

World food shortages become more acute each year, and all too often, rodents are present to take their unwarranted share. To counter this, we must refine our rodent control methods to make them more efficient. To this end, correct bait selection is essential. Grain baits must be selected for purity and acceptability. Grain alterations must be carefully controlled, as well as any additives. Multi-ingredient or composition baits must be checked for size, hardness, protein content and additives. The selection of trap baits is critical for the success of trapping program. In general, fresh coconut is the best bait, but on-site …

Keynote Address—The Role Of Education In Vertebrate Pest Control, Gustav A. Swanson

Vertebrate Pest Conference Proceedings: 7th (1976)

Lack of adequate information is emphasized as a major problem in attaining effective control of damage by vertebrate pests, and it is stressed that the problem is widespread in all elements of the public, including those directly involved, like producers and government officials, as well as those only indirectly involved, like the average citizen. A number of specific examples are cited to illustrate the problems of uninformed or inadequately informed publics.

Anticoagulants—A Problem Of Distribution For The Hawaiian Sugar Industry, Allen H. Teshima

Vertebrate Pest Conference Proceedings: 7th (1976)

Current rodent control practices for the Hawaiian sugar industry revolve around the use of single grain baits containing anticoagulants in bait stations and zinc phosphide for aerial applications. Neither type of control programs as they are now applied has been very effective against the Norway rat (Rattus norvegicus) which is becoming a major problem species for the industry. As a result, we have sought a more effective anticoagulant, to which the Norway rat is more susceptible, and an improved method of bait distribution. With knowledge of the month-to-month variation in the field rodents' gestation rate, a new control …

The Cost Of Predator Damage Control Using Trapping As The Primary Control Technique, Ronald A. Thompson

Vertebrate Pest Conference Proceedings: 7th (1976)

The justification and economics of the operational animal damage control program in California as conducted by the U.S. Fish and Wildlife Service are discussed. Emphasis is given to the necessity for use of the steel trap. Nearly 83 percent of the depredators are taken by trapping. Annual agricultural losses due to predation were estimated at $4.7 million in California for Fiscal Year 1975. The projected cost-benefit ratio was 1:3.9.

The Use Of Aircraft In Predator Control, Dale A. Wade

Vertebrate Pest Conference Proceedings: 7th (1976)

Private aerial hunting of predators for protection of livestock began before 1925 in the western United States. Apparently, it was first used in professional control programs in 1942. Inclement weather, dense vegetation and rough terrain are limiting factors and helicopters are more versatile than fixed-wing aircraft. When it can be employed, aerial hunting is unsurpassed as an immediate control method where livestock losses are severe and the need for control is urgent.

Control Methods For Nuisance Beaver In The Southeastern United States, Edward P. Hill

Vertebrate Pest Conference Proceedings: 7th (1976)

Strychnine alkaloid baits were consumed by both captive and wild beaver without any apparent hesitation. An approximate minimal acute lethal dose of sodium monofluoro-acetate to beaver of mixed ages and sex was 0.202 mg/kg. Trapping beaver on four study area watersheds in Alabama with No. 330 conibear traps for approximately two weeks in winter during two successive years essentially eliminated beaver. Older individuals were trapped the first year, maturing juveniles and the remaining few adults were trapped the second year, and there was very little reproduction between the trapping periods. Trapping, with its recreational appeal, and income and food potential …

Pharmacological Review Of Chemicals Used For The Capture Of Animals, Peter J. Savarie

Vertebrate Pest Conference Proceedings: 7th (1976)

A review of the literature reveals that over 60 chemicals have been used for the capture of wild animals, but only 30 of the most widely used chemicals are discussed in the present paper. For practical considerations these chemicals can be classified as being either (l) neuromuscular blocking agents, or (2) central nervous system (CNS) depressants. Some common neuromuscular blocking agents are d-tubocurarine, gallamine, succiny1choline, and nicotine. M99 and its derivatives, phencyclidine, and xylazine are some of the more commonly used CNS depressants. Neuromuscular blocking agents have a relatively rapid onset and short duration of action but they do not …

Some Of The Effects Of Domestic Sewage Discharged Into Hickman And Jessamine Creeks In Jessamine County, Kentucky, Henry H. Howell, Mike W. Jones, Robert A. Kuehne

KWRRI Research Reports

A 6-week study was made in the summer of 1971 as an initial effort to determine the extent of pollution that the three sewage disposal plants in Jessamine County, Kentucky, are contributing to its streams. With the rapid population increase in Lexington and nearby municipalities, this study should furnish a basis of comparison for future investigations. Eighteen collecting stations were established in riffle areas of Hickman and Jessamine Creeks, and coliform bacteria, macro-invertebrate populations, fish populations and chemical water quality of each riffle area were studied.

Hickman Creek's flow was augmented by approximately 3,100,000 gallons/day (11,735 -m³/day) from …

Reflectant Induced Modification Of Soybean Canopy Radiation Balance. V Longwave Radiation Balance, M. W. Baradas, B. L. Blad, N. J. Rosenberg

School of Natural Resources: Faculty Publications

No abstract provided.

A System And Program For Monitoring Co2 Concentration Gradient, And Flux In An Agricultural Region, N. J. Rosenberg, S. B. Verma

School of Natural Resources: Faculty Publications

No abstract provided.

Carbon Dioxide Concentration And Flux In A Large Agricultural Region Of The Great Plains Of North America, S. B. Verma

School of Natural Resources: Faculty Publications

No abstract provided.

Resistance-Energy Balance Method For Predicting Evapotranspiration: Determination Of Boundary Layer Resistance And Evaluation Of Error Effects, S. B. Verma, N. J. Rosenberg, B. L. Blad

School of Natural Resources: Faculty Publications

No abstract provided.

Vertical Profiles Of Carbon Dioxide Concentration In Stable Stratification, S. B. Verma

School of Natural Resources: Faculty Publications

No abstract provided.

Evaluation Of Critical Soil Properties Needed To Predict Soil Water Flow Under Desert Conditions, W. A. Jury, L. H. Stolzy, J. Letey Jr., L. V. Weeks

Progress reports

No abstract provided.

Bear River Basin Environmental Assessment: Esthetics- Appendix I, Human Interest- Appendix Ii, Utah Division Of Water Resources

Elusive Documents

No abstract provided.

Bear River Basin Type Iv Study: Economic Base Appendix Report, United States Department Of Agriculture

Elusive Documents

A collection of tables relating to the Bear River Basin Type IV Study relating the economic variables to be considered.

Biology Of Nematodes In Desert Ecosystems, D. W. Freckman, R. Mankau

Memorandum

No abstract provided.

Responses And Interactions In Desert Plants As Influenced By Irrigation And Nitrogen Application, R. B. Hunter, E. M. Romney, A. Wallace, H. O. Hill, T. A. Ackerman, J. E. Kinnear

Memorandum

No abstract provided.

Estimation Of Functional Root Biomass And Root And Shoot Response Of Atriplex Confertifolia To Summer Rain, K. C. Hodgkinson, P. S. Johnson, B. E. Norton

Memorandum

No abstract provided.

Demographic Studies Of Sagebrush Insects As Functions Of Various Environmental Factors, T. H. Hsiao, A. K. Temte

Memorandum

No abstract provided.

The Ants Of Arizona: An Ecological Study Of Ants In The Sonoran Desert, C. Gaspar, F. G. Werner

Memorandum

No abstract provided.

Seasonal Use Of Soil Moisture By Larrea Tridentata And Ambrosia Deltoidea, D. R. Cable

Memorandum

No abstract provided.

Plant Demographic Studies Of Desert Annual Communities In Northern Utah Dominated By Non-Native Weedy Species, D. R. Duba, B. E. Norton

Memorandum

No abstract provided.

Jornada Validation Site Report, W. G. Whitford

Memorandum

No abstract provided.

Nitrogen And Phosphorus Constraints On Primary Production In The Great Basin Desert, J. J. Jurinak, D. W. James, A. Van Luik

Memorandum

No abstract provided.

Growth Of Perennials In Response To Varying Moisture And Defoliation Regimes, J. A. Macmahon, B. E. Norton, B. M. Capen

Memorandum

No abstract provided.

Gas Exchange And Productivity Of Sonoran Desert Shrubs, S. R. Szarek, R. M. Woodhouse

Memorandum

No abstract provided.

Abundance And Distribution Of Soil Microarthropods In Rock Valley, Nevada, E. B. Edney, P. J. Franco, J. F. Mcbrayer

Memorandum

No abstract provided.